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¿Una montaña dura para siempre?
Earth's Natural Resources Unit | Lesson 3 of 4

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¿Una montaña dura para siempre?

Earth's Natural Resources Unit | Lesson 3 of 4
Lesson narration:
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CONVERSEMOS:

Aquí está un primer plano de uno de los árboles antes de que lo quitaran. ¿Qué crees que está pasando? ¿Qué crees que le pasó a esta pirámide?

treebeforeremoval

CONVERSEMOS:

¿Alguna vez alguien te ha dicho que no pongas un refresco en el congelador? ¿Por qué dice eso la gente?

CONVERSEMOS:

¿Qué tipos de experimentos podrías hacer para descubrir que sucede cuando una roca cae por la ladera de una montaña?

Paso
01/14
Encuentra un compañero o compañera con quién trabajar.
Paso
02/14
Obtén estos materiales. Cada grupo necesita estas cosas.
Paso
03/14
Agarra uno de los cubos de azúcar y contesta las preguntas
número uno y dos. Puedes dibujar todo el cubo o solo uno
de sus lados.
Paso
04/14
Escojan un cubo de azúcar para cada persona y coloreen las
orillas de esta forma.
Paso
05/14
Cuenta cuántas orillas tiene un cubo de azúcar. Escribe la
respuesta en la pregunta número tres.
Paso
06/14
Decide quién será el Agitador y quién será el Contador para
la primera prueba.
Paso
07/14
Agitador: coloca un cubo colorido y todos los cubos sin colores
en el contenedor. Deja un cubo colorido en el plato.
Paso
08/14
Ahora hagan la primera prueba. Agitador: Agita el contenedor
40 veces, contando en voz alta.
Paso
09/14
Agitador: abre el contenedor y pon los cubos en el plato.
Agitador y Contador: escriban cómo han cambiado los cubos.
Paso
10/14
Contador: Agarra el cubo colorido que agitaron. Cuenta cuántas
orillas todavía tienen color. Ambos deben escribir el resultado.
Paso
11/14
Agitador: pon los cubos que acabas de agitar dentro del
contenedor de nuevo. Asegúrate de cerrar bien la tapa.
Paso
12/14
Cambien de rol y terminen las hojas de estadísticas, incluyendo
las preguntas del número 5 al número 10. Cuando todos hayan
terminado, vayan a la siguiente página.
Paso
13/14
Platiquen sobre estas preguntas con toda la clase (1 de 2).
Paso
14/14
Platiquen sobre esta pregunta con toda la clase (2 de 2).
Slide Image
Slide Image

montaña


1 de 8

un área de tierra elevada con lados empinados
Slide Image

desgaste


2 de 8

el proceso de romper rocas en pedazos más pequeños
Slide Image

cuña de raíz


3 de 8

cuando el crecimiento de una raíz causa que se rompa una piedra
Slide Image

congelación


4 de 8

cuando un líquido se convierte en un sólido, como cuando el agua líquida se convierte en hielo
Slide Image

cuña de hielo


5 de 8

cuando el agua se congela y se expande causando que una roca se rompa

erosión


6 de 8

el movimiento de pedacitos de piedra de un lugar a otro mediante el agua, el viento, el hielo, o la gravedad
Slide Image

modelo


7 de 8

una versión de mentiras de algo que los científicos usan cuando la cosa de verdad es algo demasiado grande, pequeño, o complicado para poder usarlo en sus estudios
Slide Image

experimento


8 de 8

una prueba que se usa para descubrir más información sobre una pregunta
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Lesson Image
El Capitan by Octagon , used under CC BY
Exploration
Everest by Luca Galuzzi , used under CC BY-SA
space view by NASA
Halfdome by Scott Catron , used under CC BY-SA
Mt. San Jacinto by Wattewyl , used under CC BY
Great Pyramid of Giza by Wknight94 , used under CC BY-SA
Chichen Itza by Christine Zenino , used under CC BY
light brick wall by Titus Tscharntke
Complejo Danta by Ronyrocael , used under CC BY-SA
El Mirador by Geoff Gallice , used under CC BY
Copan ruins by Matthias Hiltner , used under CC BY
Puna lava flow by DVIDSHUB , used under CC BY
Annona Atemoya seeds by takoradee , used under CC BY-SA
cement texture by Titus Tscharntke
El Tigre pyramid by Dennis Jarvis , used under CC BY-SA
Temple of Nohoch Mul by Vin Crosbie , used under CC BY-ND
pavement by Simon Law , used under CC BY-SA
sidewalk & tree roots by Doug Caldwell , used under CC BY
cracked brick wall by debs-eye , used under CC BY
refrigerator by Juan de Vojníkov , used under CC BY-SA
soda can by Ryan McGilchrist , used under CC BY-SA
frozen soda can by William Brawley , used under CC BY
explosion in freezer by mrsparks , used under CC BY-SA
frozen bottle by baronsquirrel , used under CC BY
broken rock by Till Niermann , used under CC BY-SA
weathered rock by Natursicilia , used under CC BY-SA
rock parts by Lamiot , used under CC BY
Mount Hood by Thomas Shahan , used under CC BY
Mont Saint Honorat by Zil , used under CC BY-SA
jagged rocks by Peretz Partensky , used under CC BY-SA
Nuna Island by Kim Hansen , used under CC BY-SA
Activity
horses by Ben Salter , used under CC BY
pencil by Charm
Other
pebble beach by Paul Allison , used under CC BY-SA

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Lesson narration:

Grade 4

Earth's Natural Resources

Weathering & Erosion

4-ESS2-1

Activity Prep

Print Prep
In this lesson, students will explore how solid rock breaks apart into smaller pieces through a process called weathering (including root-wedging and ice-wedging). In the activity, Sugar Shake, students use sugar cubes as a model for rocks. They perform an experiment with this model to understand the process of weathering and how this process explains why rocks at the tops of mountains are jagged, while those at the bottom are rounded.
Preview activity

Exploration

20 mins

Grade 4

Earth's Natural Resources

Weathering & Erosion

4-ESS2-1

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Natural Resources Tx Lesson 3: Will a mountain last forever?

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